Folding tripod support or stand



(No Model.) I

W. J. BISHOP.

FOLDING TRIPOD SUPPORT 0R STAND.

No. 284,269. Patented Sept. 4. 1883.

UNITED STATES PATENT OF IC WVILLIAM J. BISHOP, OF PHILADELPHIA, PENNSYLVANIA.

FOLDINGTRIPOD SUPPORT OR STAND.

lPECIFICATION forming part of.Letters Patent 'No. 284,269, dated September 4, 1883.

Application filed March 26, 1883. (No model.)

To all whom it may concern Be it known that I, WILLIAM J. BISHOP, .of the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Folding Tripod Supports or Stands, which may be used forsupportingbooks, sheet-music,

or other like purposes; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a front elevation of a tripod constructed according to my invention. Fig. 2 is a view of one of the wire brace-rods. Fig.

, 3 is a bottom view of the main tubular staff or body. Fig. 4 is aview of the sliding collar or runner. Fig. 5 is a viewof one of the legs.

Similar letters of reference in the accompa nying'drawings indicate corresponding parts.

The object of my invention is to construct a tripod of metal that will be cheap, light, strong, and can be folded into a small space.

The improvement consists in forming holes in the bottom of the tubular staff, and connecting the brace-rods without the intervention of a socket, as has been used heretofore. The brace-rods are made of wire with a hook at each end, that the hooks may formjoints, one joint being in the tubular staff and'the otherin the leg.

In the drawings, A represents themetal tubular staff, which staff I prefer to make of half-inch-iron gas-pipe. Near the bottom of 3 5 this metal stafi I drill three holes, a a a.

p B is a malleable-iron collar or runner constructed with three cars and an adjusting thumb-screw. The collar is made to slide on the staff A. It may be adjusted to such points 40 on the staff as. desired and fastened by the thumb screw.

f represents the legs, which I make of malj leable iron. They are cast with panels in the sides, as is shown in the drawings. These panels will enable me to 'make the legs light of weight, yet of sufficient strength for all purposes.

1) represents the wire braces. On these v braces, at one end,I bend ahook, c, and at the runner B is moved down near to the bottom other end a hook, (I. These hooks are bent l and formed on a former, so, that the hooks and lengthof the braces will all be uniform in shape and length.

In putting the tripod togetherI use a small rivet in each of the ears of the runner B. With 5 5 this rivet the top of the leg is connected'to the runner B and forms a joint at that point. The hook d on brace b forms a joint in the middle of the leg f. The hook d is slightly riveted to form a burr, which prevents the hook d from coming out of i the leg. The hook 0 forms a joint in the hole a at the bottom of the tubular staff A. i

The tubular staff in the drawings is shown broken at the top; but when of full length it has a screw-thread cut on it at the top, upon which is screwed a reducing-coupling, in which coupling is a thumb screw similar to the one in runner B. i i I The adjusting and supporting rod and musicholder, when my invention is used for amusicstand, is constructed as is shown and described in Patent N 0. 218,854, August 26, 187 9'. It is obvious that other music-holders may be used with my improved tripod-support.

When using my improvement for a musicstand or other such purposes that require it high, and for supporting a light weight, the

of the staff A. This will give nearly the full length of the staff A for elevation.

It is obvious that my improved tripod may be used to. support a seat, which seat may be fixed on the top of' the staff A. WVhen I use it as such or to support a heavy burden, I drop the bottom of the staff A, as is shown in the drawings, and in some cases let the bottom or hooks c 0 0 rest on the floor or ground. It will then support quite a heavy weight for its size.

It is obvious that the staff A may be made of larger pipe than is mentioned in the fore part of this specification, and the other parts may be constructed of such size as the use of the invention will call for.

Whenthe tripod is to be folded up, thethumbscrew in the runner Bis loosened and therunner B moved up. This will close the legs f 5 As my invention and improvement, I claim close to the staff A, and the tripod may be flexible joint, in combination with the legs carried in a small space. ff f and runner B, as shown, described, and I0 I am aware that folding metal tripods are for the purpose specified.

not new; but WM. J. BISHOP.

A tubular metal supporting-staff A, having Witnesses:

holes a a a at the bottom, wire brace-rods b 1) JOHN SHINN, b, constructed with books 0 and d to form a SAML. HENSHALL. 

